+}
+
+extern const sd_bus_name_error_mapping __start_sd_bus_errnomap[];
+extern const sd_bus_name_error_mapping __stop_sd_bus_errnomap[];
+
+static void dump_mapping_table(void) {
+ const sd_bus_name_error_mapping *m;
+
+ printf("----- errno mappings ------\n");
+ for (m = __start_sd_bus_errnomap; m < __stop_sd_bus_errnomap; m++)
+ printf("%s -> %d\n", m->name, m->code);
+ printf("---------------------------\n");
+}
+
+static void test_errno_mapping_standard(void) {
+ assert_se(sd_bus_error_set(NULL, "System.Error.EUCLEAN", NULL) == -EUCLEAN);
+ assert_se(sd_bus_error_set(NULL, "System.Error.EBUSY", NULL) == -EBUSY);
+ assert_se(sd_bus_error_set(NULL, "System.Error.EINVAL", NULL) == -EINVAL);
+ assert_se(sd_bus_error_set(NULL, "System.Error.WHATSIT", NULL) == -EIO);
+}
+
+SD_BUS_ERROR_MAPPING(test) = {
+ {"org.freedesktop.custom-dbus-error", 5},
+ {"org.freedesktop.custom-dbus-error-2", 52},
+};
+
+static void test_errno_mapping_custom(void) {
+ assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error", NULL) == -5);
+ assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-2", NULL) == -52);
+ assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-x", NULL) == -EIO);
+}
+
+int main(int argc, char *argv[]) {
+ dump_mapping_table();
+
+ test_error();
+ test_errno_mapping_standard();
+ test_errno_mapping_custom();